Great Planes Piper J-3 ElectriCub Park Flyer ARF - GPMA1153 - Manual (Page 13)

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2. Turn on the transmitter and receiver. Double-check that
the elevator trim on your transmitter is centered, the servo
arm on the servo is centered and that the elevator is
centered to the stab.
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3. Double-check that the rudder trim is centered on your
transmitter, the servo arm on the servo is centered and that
the rudder is centered on the fin.
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4. Insert and tighten 2.8 x 5mm machine screws on the
screw-lock pushrod connectors to clamp down on the
pushrods and trim off excess pushrod with wire cutters.
Leave approximately 1/2" [13mm] beyond the screw-lock
pushrod connector.
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1. Turn on the transmitter and receiver and center the
trims. If necessary, remove the servo arms from the servos
and reposition them so they are centered. Reinstall the
screws that hold on the servo arms.
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2. With the transmitter and receiver still on, check all the
control surfaces to see if they are centered. If necessary,
adjust the screw-lock pushrod connectors on the pushrods
to center the control surfaces.
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3. Make certain that the control surfaces respond in the
correct direction as shown in the diagram. If any of the
controls respond in the wrong direction, use the servo
reversing in the transmitter to reverse the servos connected
to those controls. Be certain the control surfaces have
remained centered. Adjust if necessary.
Use a Great Planes AccuThrow ™ (or a ruler) to accurately
measure and set the control throw of each control surface
as indicated in the chart that follows. If your radio does not
have dual rates, we recommend setting the throws at the
low rate setting.
Note: The throws are measured at the widest part of the
elevator and rudder.
IMPORTANT: The Mini Cub ARF has been extensively
flown and tested to arrive at the throws at which it flies
best. Flying your model at these throws will provide you
with the greatest chance for successful first flights. If, after
you have become accustomed to the way the Mini Cub
ARF flies, you would like to change the throws to suit your
taste, that is fine. However, too much control throw could
make the model difficult to control, so remember, “more is
not always better.”
These are the recommended control surface throws:
High Rate Low Rate
ELEVATOR: 5/8" [16mm] up 1/2" [13mm] up
5/8" [16mm] down 1/2" [13mm] down
RUDDER: 5/8" [16mm] right 3/8" [10mm] right
5/8" [16mm] left 3/8" [10mm] left
Set the Control Throws
Check the Control Directions
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